Business Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Identifiable assets	$ 1,964.8		$ 1,964.8		$ 1,985.0
External revenue	1,244.9	$ 1,322.6	3,689.7	$ 3,851.1
Operating income (loss)	47.7	26.7	108.3	14.3
YRC Freight [Member]
Segment Reporting Information [Line Items]
Identifiable assets	1,452.2		1,452.2		1,462.1
External revenue	789.2	843.0	2,322.0	2,441.9
Operating income (loss)	16.7	8.8	39.4	(24.0)
Regional Transportation [Member]
Segment Reporting Information [Line Items]
Identifiable assets	748.6		748.6		685.7
External revenue	455.7	479.6	1,367.7	1,409.2
Operating income (loss)	33.6	24.4	75.9	55.5
Corporate / Eliminations [Member]
Segment Reporting Information [Line Items]
Identifiable assets	(236.0)		(236.0)		$ (162.8)
External revenue	0.0	0.0	0.0	0.0
Operating income (loss)	$ (2.6)	$ (6.5)	$ (7.0)	$ (17.2)